Which of these self-care measures would the nurse include when teaching a pregnant woman about exercise.. Avoid exercising in the supine position after the first trimester

Which of these self-care measures would the nurse include when teaching a pregnant woman about exercise?
a. Check your pulse while exercising and slow your pace if your pulse rate reaches 160
b. You may exercise to the point of fatigue but should avoid exhaustion
c. Avoid exercising in the supine position after the first trimester
d. After exercise relax in the hot tub or sauna for 10 minutes

Answer C. After the first trimester the pregnant woman should avoid exercising in the supping position.
This is associated with decreased cardiac output.
As a general rule, pregnant women should not engage in exercise that causes their heart rate to exceed a maximum of 140 beats per minute.
Per the American College of Obstetricians and Gynecologists, pregnant women should not exercise to the point of fatigue or exhaustion.
Hyperthermia may have teratogenic effects on the fetus so pregnant women should avoid hot tubs and saunas.